1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
polet [3.4K]
3 years ago
13

Write an equivalent expression for 3x+12+7x+x

Mathematics
1 answer:
Anit [1.1K]3 years ago
5 0
<span><span><span><span>3x</span>+12</span>+<span>7x</span></span>+x</span>Combine Like Terms:<span>=<span><span><span><span>3x</span>+12</span>+<span>7x</span></span>+x</span></span><span>=<span><span>(<span><span><span>3x</span>+<span>7x</span></span>+x</span>)</span>+<span>(12)</span></span></span><span>=<span><span>11x</span>+12</span></span>Answer:<span>=<span><span>11x</span>+<span>12</span></span></span>
You might be interested in
The $299.99 of a cell phone Brittany purchesd was on sail for 10% off. What amount did Brittany save?
Oksi-84 [34.3K]

Answer:

10* 299.99=2999.9

2999.9/100=29.999

this would round up to 30, so Brittany saved $30. : )

6 0
3 years ago
Here are 946 milliliters in a quart. There are 22 pints in a quart. How many milliliters are in a pint?
Fed [463]

Answer:  The answer is 43.


Step-by-step explanation:  Given that there is a quart, in which there are 946 millilitres and 22 pints. We are to find how many millilitres are there in a pint.

For that, we just need to divide number of milliliters by the number of pints in the quart.

Let us start as follows -

In 22 pints of the quart = 946 millilitres.

Therefore, in 1 pint of the quart = 946/22 = 43 millilitres.



6 0
3 years ago
Read 2 more answers
Simplify (7)(-6). <br> a) -42<br> b) -13 <br> c) 1<br> d)42
rusak2 [61]
It’s A) simplify it you’ll get -42 because a negative times a positive is an negative
6 0
3 years ago
Read 2 more answers
-2x^2+4x-1 from 6x^2+3x-9
kirza4 [7]

Answer:

8{x}^{2}  - x   - 8

Step-by-step explanation:

We want to subtract

- 2 {x}^{2}  + 4x - 1

from

6 {x}^{2}  + 3x - 9

We set up the subtracttion problem to get:

6 {x}^{2}  + 3x - 9 - ( - 2 {x}^{2}  + 4x - 1)

We expand the parenthesis to get:

6 {x}^{2}  + 3x - 9  + 2 {x}^{2}   - 4x  + 1

Group similar terms:

6 {x}^{2}   + 2 {x}^{2} + 3x- 4x  + 1 - 9

We simplify to get:

8{x}^{2}  - x   - 8

4 0
3 years ago
The number of items (N) that can be purchased for a given amount of money is inversely proportional to the cost (C) of an item.
mars1129 [50]

Answer:

436 items

Step-by-step explanation:

When a quantity A is inversely proportional to another quantity B, we can write:

A=\frac{k}{B}

Where k is the proportionality constant  [that we need to find]

For this problem, we can write the ratio as:

N=\frac{k}{C}

Now given N = 480 and C = 4.90, we first find k:

N=\frac{k}{C}\\480=\frac{k}{4.90}\\k=4.90*480\\k=2352

Now, as second step, we need this time to find N, when

C = 5.40

Note, we know know k = 2352, so we find N:

N=\frac{k}{C}\\N=\frac{2352}{5.40}\\N=435.55

Rounding to next whole number, we have 436 items

5 0
3 years ago
Other questions:
  • Can anyone help me on this one
    10·1 answer
  • A line passes through (2, −1) and (4, 5).<br><br> Which answer is the equation of the line?
    5·1 answer
  • 3. Use the figure to complete each statement.
    11·1 answer
  • ♡♡♡please help ♡♡♡<br>thank you ​
    14·2 answers
  • Can someone please help me ( make sure it’s right too)
    11·2 answers
  • A family has two cars. The first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel efficiency of
    13·2 answers
  • Can someone help it has to be a polynomial
    11·2 answers
  • Oscar draws two lines on his paper. The lines are always one inch apart and do not intersect. Which term can be used to name wha
    8·1 answer
  • Solve 3x-4=17 you may use the flowchart to help if u wish
    14·1 answer
  • Kayden is the youngest of four siblings whose ages are consecutive integers. if the sum of their ages is 90, find kayden's age.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!